Semi-indirect-lighting device.



-A. S. POWELL.

SEMI'INDIRECT LIGHTING DEVICE.

APPLICATION FILED JUNE 12. 1916.

1,203,046. Patented (m. 31,1916

1% x. M, attozmew S 7 MFRED S. POWELL, OF NEW YORK, N. Y; ASSIGNOR TO MAURICE STRANSKYali Q I MOUNT VERNON, NEW YORK.

sninr-innmncr-Lrcnrme DEVICE.

moanin- Patented Got. 31, 1916.

Application filed June 12, 1916. Serial No. 103,143.

Toall whom it may concern:

Be it known that I, ALFRED S. POWELL, a citizen of the United States, residing atNew York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Semi-Indirect- Lighting Devices, of which the following is a full, clear, and exactdescription.

This invention relates to illuminating devices, and its object is to provide simpleand eflective means, capable of being manufactured at low cost, for supporting a lightdiffusing bowl or globe around an electric lamp or other source of light. it

To this'and other ends the invention consists in the novel features and combinations hereinafter described.

One form. of the invention is illustrated in the accompanying drawing, whichshows the complete device in perspective.

In the present'form of the invention the source of light is an incandescent electric lamp 10, hanging from the usual socket 11. The latter carries a reflector-support comprising a split ring 12 encircling the socket and removably clamped thereon by a binding screw 13, and a gallery 14 provided with the usual radial screws, as 15, to releasably engage anoutwardly extending flange on'the flat, downwardly flaring reflector 16, which latter is preferably made of white'or opal glass. 4

The translucent ground glass diffusing bowl 17, preferably white or opal in color, has at its top an outwardly extending flange 18. The latter rests on the inwardly extending flange 19 of a spring metal ring or annuhis 20. With the exception of its flange 18, said bowl is smaller in diameter than the ring 18 and flange 20, so that it can be passed down through the ring. to bring the two flanges into engagement. The ring is preferably slightly smaller in diameter than the reflector 16.

The ring 20 is suspended by means of short legs or hangers 21, of metal, riveted tothe ring at their lower ends and havingtheir upper ends bent to form inwardly disposed hooks 22, which engage the edge of the flaring reflector 16, thereby suspending the ring and bowl from said edge. The hangers are preferably long enough to leave ample venflector, thereby protecting these parts from possible breakage by the intense heat of a high power lamp. The space also provides an unrestricted outlet for reflected light, far

' enoughabove the eye-level to avoid being un- I tilating space between the bowl and the respringing the hangers outwardly to disengage their hooks 22 from the edge of the reflector. The bowl can then be lifted out of the supporting annulus 20, and the lamp unscrewed from the socket. Ree-assembly of the parts is of course equally simple and easy. In the form shown, no lateral pressure can be exerted on the edge of the bowlby the supporting annulus, since there are no screws which a careless user might turn up too tightly. The spring pressure of the hangers on the reflector-edge can also be light enough to avoid danger of breakage, though firm enough to support the bowl with security.

What I claim is:

A semi-indirect lighting device, comprising a socket to hold a lamp in depending position, a flat downwardly flaring reflector supported on said socket, a translucent, up wardlv open diffusing bowl below said re.-

. flector to receive a lamp suspended from said socket, and having an outwardly extending flange at its top, a supporting annulus en-.

circling the top of the bowl and having means underlying the said flange to support the bowl, and a plurality of hangers attached to the annulus at their lower ends and having their upper ends hooked to engage the edge of said reflector" to suspend the annulus and bowl therefrom and leave a ventilating and light-transmitting opening between the bowl and the reflector, substantially as and for the purpose set forth.

In testimony'whereof I hereunto aifix my signature.

ALFRED s. rowELL. 

